Journal
ARQUIVOS BRASILEIROS DE ENDOCRINOLOGIA E METABOLOGIA
Volume 51, Issue 5, Pages 825-831Publisher
SBEM-SOC BRASIL ENDOCRINOLOGIA & METABOLOGIA
DOI: 10.1590/S0004-27302007000500021
Keywords
thyroid cancer; staging; prognosis
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The TNM classification of UICC is used for predicting the outcome of thyroid cancer. The 6(th) edition changed the description of primary tumor (T), regional lymph node (N) and the staging group. The aim of this study was to compare the ability of the 5(th) and the 6(th) editions to predict outcome. The two classifications were applied in a retrospective analysis of 90 patients from HUCFF. Sixtynine patients had papillary carcinoma, 14 follicular, 4 Hurthle cell, and 3 mixed. Patients were followed for a mean period of 58.3 months. At the end of follow-up, 49 patients were disease-free, 23 persisted with disease, 4 had cervical recurrence, 11 had metastases and 3 died. According to the 6th edition, 19 patients were classified as T1, compared to 7 based on the 5th edition; 19 patients were T2 compared to 30; 14 were T3 compared to 10; 22 were T4 compared to 27, and 16 patients were Tx. Both editions showed comparable remissions for stages 1, 11, and Ill. For the stage IV there was a significant change in remission, however there was no difference comparing IV and IV C.
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